Finished working on the IMF. Code starts and runs.

examples/IsolatedGalaxy/IsolatedGalaxy_feedback/run.sh

examples/main.c

src/engine.c

src/engine.h

src/feedback/EAGLE/feedback.c

src/feedback/EAGLE/feedback.h

src/feedback/EAGLE/feedback_iact.h

src/feedback/EAGLE/feedback_properties.h

src/feedback/EAGLE/imf.h

src/feedback/EAGLE/interpolate.h

src/feedback_properties.h

src/stars/Default/stars_iact.h

src/stars/EAGLE/stars_iact.h

src/swift.h